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If the vertical angle of a triangle be 'bisected 'by a straight line which also cuts the base, the rectangle contained by the sides of the triangle is equal to the rectangle contained by the segments of the base, together with the square on the straight...

Key to System of practical mathematics. 2 pt. No.xvii - Page 75
by Scottish school-book assoc - 1845
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Educational Review, Volume 31

Nicholas Murray Butler, Frank Pierrepont Graves, William McAndrew - Education - 1906 - 558 pages

...IHC, ICA and IAB, are on the circumference of the circle circumscribing the triangle ABC. 13. If the vertical angle of a triangle be bisected by a straight line which cuts also the base, the segments will have the same ratio as the other sides of the triangle have to...

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